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If you have bought the PDF edition of SQL Performance Explained before, you can download it again. You’ll get an e-mail with a link to the latest and greatest version.

About The Author

Markus Winand is an independent author, trainer and consultant on all things SQL. His book “SQL Performance Explained” has just been translated into a fifth language. It can be purchased as a print edition, and it’s also available to read for free on his use-the-index-luke.com website. Markus is currently working on his second book centered on the idea that things have changed a lot since SQL-92. It is likewise available free of charge online (modern-sql.com). Find his offerings for companies and developers at winand.at.